Back massager



FIG. 1 is a side elevational view of a back massager showing my new design; the opposite side being identical thereto;

FIG. 2 is a cross-sectional view thereof, taken along line 2--2 of FIG. 1;

FIG. 3 is a plan view thereof, as viewed from the top of FIG. 1;

FIG. 4 is a plan view thereof, as viewed from the bottom of FIG. 1;

FIG. 5 is an elevational view thereof, as viewed from the left of FIG. 1; and,

FIG. 6 is an elevational view thereof, as viewed from the right of FIG. 1. 

The ornamental design for a back massager, as shown and described. 